"Tango," a Belgian Malinois/German Shepherd mix with the Harris County Constable's Office attacks trainer Jason Stanze during the Hard Dog/Fast Dog Event at the Houston Livestock Show and Rodeo Sunday, March 8, 2015, in Houston. less

"Tango," a Belgian Malinois/German Shepherd mix with the Harris County Constable's Office attacks trainer Jason Stanze during the Hard Dog/Fast Dog Event at the Houston Livestock Show and Rodeo Sunday, March 8, ... more

"Ron," a Belgian Malinois with the Harris County Constable's Office attacks trainer Jason Stanze during the Hard Dog/Fast Dog Event at the Houston Livestock Show and Rodeo Sunday, March 8, 2015, in Houston.

"Ron," a Belgian Malinois with the Harris County Constable's Office attacks trainer Jason Stanze during the Hard Dog/Fast Dog Event at the Houston Livestock Show and Rodeo Sunday, March 8, 2015, in Houston.